/*
 * QTeXPreview
 * Copyright (C) 2008, Philip Pronin (philip.pronin@gmail.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef HIGHLIGHTER_H
#define HIGHLIGHTER_H

#include <QSyntaxHighlighter>
#include <QTextEdit>

QT_FORWARD_DECLARE_CLASS(TeXSyntaxHighlighter)

class TeXEditor : public QTextEdit {
	Q_OBJECT
	Q_PROPERTY(bool syntaxHighlighting
		READ getSyntaxHighlightingEnabled WRITE setSyntaxHighlightingEnabled)
	Q_PROPERTY(bool bracketsMathing
			READ getBracketsMathingEnabled WRITE setBracketsMathingEnabled)
	Q_PROPERTY(QString text READ text WRITE setText)

public:
	TeXEditor(QWidget* parent = NULL);
	virtual ~TeXEditor() {}

	QString text() const;
	void setText(const QString& str);


	bool getSyntaxHighlightingEnabled() const;
	bool getBracketsMathingEnabled() const;

public slots:
	void applySettings();
	void setSyntaxHighlightingEnabled(bool enable);
	void setBracketsMathingEnabled(bool enable);

protected slots:
	void checkMatching();

private:
	bool syntaxHighlighting, bracketsMathing;
	TeXSyntaxHighlighter* highlighter;
};

class TeXSyntaxHighlighter : public QSyntaxHighlighter {
public:
	TeXSyntaxHighlighter(TeXEditor* parent = NULL);
	virtual ~TeXSyntaxHighlighter() {}

protected:
	void highlightBlock (const QString& text);

private:
	QTextCharFormat keywordFormat, bracketsFormat;
	TeXEditor* parent;
};

#endif /* HIGHLIGHTER_H */
